Which statement BEST distinguishes the Viet Cong from the North Vietnamese Army?

Question

A) The North Vietnamese Army fought beside the allied forces, while the Viet Cong fought against the allied forces.

B) The North Vietnamese Army represented the political interests of North Vietnam, and the Viet Cong represented the political interests of South Vietnam.

C) The North Vietnamese Army included regular soldiers, and the Viet Cong included a mix of regular and irregular soldiers and peasant sympathizers from South Vietnam.

D) The North Vietnamese Army was composed only of Vietnamese citizens, while the Viet Cong were made up of fighters from many South Asian countries, such as Thailand, Cambodia, and Laos.

I think it's D

Answer 1

I don't agree.

Answer 2

No. Why don't you think it's C?

Or it could be B.